Suppose there are 5 air compressors to maintain the pressure of about 0.8Mpa, a total of 10 motor units, 2 standby, when the standby pump pressure is less than 0.8Mpa, stop 8 Taichung any one or a plurality of air compressor motor is greater than the pressure. With MITSUBISHI PLC and delta M inverter, how do you tell me how to transfer this pressure, how to design the program, and how to set up PID?. Please help me, reminding me about.
Have sold specialized constant pressure water supply controller, do not know? Buy one straight, stupid
Analog signal module to collect pressure signals, if it is an electric contact pressure gauge, with the amount of switch on it,
Delta M series is a light load type, choose Delta B series, PLC does not need to set the PID, the best way is "with a PLC and a PLC inverter, switching control contactor, inverter is used to detect and control the pump pressure and composition, with constant pressure transducer, pressure detection can use remote pressure gauge 0 10V voltage, pressure transmitter 4 20mA current, and if the above recommended 7.5KW > motor industry inverter dual-use, frequency into star delta inverter, only one, or two (one spare)
